Opasnet is a web-workspace for making open assessments, which are impact assessments where anyone can freely participate and contribute. Opasnet is a wiki

can participate and contribute. Most open assessments have been made in Opasnet, which is a wiki-based web-workspace specifically designed for this purpose

using knowledge crystals . Knowledge crystals are extensively used in Opasnet, a web-workspace for making open assessments to support societal decisions

ISSN 2002-4436. "Are the dioxins the most dangerous chemicals in our environment?". opasnet.org. Synopsis on dioxins and PCBs Pohjanvirta R, Tuomisto J (December 1994)

hundred questions about the environment and health. Arsenic to zoonoses - Opasnet Archived 2022-03-27 at the Wayback Machine ATSDR Case Studies in Environmental

R R is a programming language and software environment for statistical computing and graphics that is widely used for statistical and data analysis. It i…

DDT DDT [1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane], a well known insecticide (insect killer). DDT is not related to PCBs or dioxins, but it is also …

EDx EDx is an effective dose associated with a biological effect in x% of the individuals. Dose may be the external exposure often expressed in mg per da…

ETA The ETA(European Tax Analyzer) is a computer-based model for the computation and comparison of the tax burdens for partnerships and corporations incl…

CII Cyprus International Institute for Environmental and Public Health (CII) is a part of the Cyprus University of Technology, Department of Nursery. The…

DNA DNA (deoxyribonucleic acid): the basic chemical structure of the genes. It is formed of four bases, adenine (A), guanine (G), cytosine (C), and thymi…

TEq, TCDD equivalent quantity, toxicity equivalent (see also TEF). Different congeners of dibenzo-p-dioxins and dibenzofurans have many of the same biolog…

↑Eva Samakovlis, Anni Huhtala, Tom Bellander and Magnus Svartengren. Air Quality and Morbidity: Concentration-response Relationships for Sweden. Working …

HEDS This page provides a description and a link to a "HEDS" database that provides information needed when modeling exposure levels or performing exposu…

Contents Short Description Consolidated Human Activity Database (CHAD) contains data obtained from pre-existing human activity studies that were collecte…

Contents Short description IRIS is a database of human health effects that may result from exposure to various substances found in the environment. The h…

EFSA The European Food Safety Authority (EFSA)[1] is the keystone of European Union (EU) risk assessment regarding food and feed safety. In close collabo…

IPTS The Institute for Prospective Technological Studies (IPTS) is one of the seven scientific institutes of the European Commission's Joint Research Cen…

Abstract Title of the project: Environmental health risk analysis: scientific uncertainties in decision-making (SCUD) Number of person-years: 5 (1.8.2005…

PUrE Pollutants in the Urban Environment (PUrE) is a four-year research consortium project (2005 to 2009) funded by the Engineering and Physical Sciences…

CNSP The CNSP(Costs of Non-Social Policy) spreadsheet model can be seen as an aid to qualitative decision-making. It is an empirical approach to appraisa…

ARNT ARNT: (AH Receptor Nuclear Translocator) a protein in cell nucleus which acts as a partner of AH receptor and some other transcription factors. The …

PCBs Chemical structures PCBs consist of 12 carbon atoms, forming two aromatic phenyl rings attached to one another through a carbon-carbon bridge, and 1…

E3ME The E3ME(Energy-Environment-Economy Model for Europe) model is a multi-country econometric macro-sectoral simulation model for EU-25 countries plus …

EDGE The EDGE model is a dynamic, multi-sector, multi-region general equilibrium model. It divides the world into eight regions. Among others, the dynami…

E3MG The E3MG model is a multi-country econometric macro-sectoral simulation model for 20 world regions. The model combines the features of an annual med…

YMAL is the Assessment and Modelling Unit in the Department of Environmental Health in the National Institute for Health and Welfare (THL). This page con…

Partnerships Funding Contact person(s) Background Recent studies suggest that microbial exposure associated with farming environment may decrease the ris…

PCDF PCDF, polychlorinated dibenzofuran. See that and PCDF - specific items; since the properties are usually very close, a treatise is usually given und…

Onor Onor is a respect currency originally designed to distribute respect for actions reducing greenhouse gas emissions. Nowadays it is more about the re…

Urbis Urbis is a GIS instrument that TNO has developed. It enables the detailed mapping of noise and air pollution (inc. odour) in (parts of) municipalit…

Tapas Tapas (Transportation, air pollution, and physical activity: climate change and urban policies) is a research project coordinated by Creal (Barcelo…

Contents What is Radon Radon is a colourless, odourless, radioactive gas. It comes from the radioactive decay of radium, which in turn comes from the rad…

SIPs and SLURPs Stochastic information packet (SIP) is a format for describing random samples from probability distributions. A SIP is essentially a Mont…

Open policy practice In Opasnet many pages being worked on and are in different classes of progression. Thus the information on those pages should be reg…

Value of information (VOI) in decision analysis is the amount a decision maker would be willing to pay for information prior to making a decision.[1]. Va…

Inputs If you are able to describe your data in the format similar to the tables below, you can use ready-made tools in Opasnet and things are quite stra…

Toxic equivalency factor <section begin=glossary /> TEF (TCDD equivalency factor, toxic equivalency factor): a relative toxicity factor of a PCDD/F or PC…

Acute toxicity toxicity occurring after a single dose within a few weeks. It is generally low, but it depends on the mixture of congeners, because dioxin…

Index conversion function (ICF) is a method describing how one index can be converted to another in a particular context. To this aim, a weight variable …

Exposure-response function (ERF) (or exposure-response relationship) is the relationship between the exposure of a given organism, system, or (sub)popula…

Plant-based food supplements Plant-based food supplements are products that are manufactured from plants and marketed to consumers as food supplements, i…

National Institute for Health and Welfare National Institute for Health and Welfare (Terveyden ja hyvinvoinnin laitos, THL) is a governmental research an…

Opasnet is a web-workspace for making open assessments, which are impact assessments where anyone can freely participate and contribute. Opasnet is a wiki

can participate and contribute. Most open assessments have been made in Opasnet, which is a wiki-based web-workspace specifically designed for this purpose

using knowledge crystals . Knowledge crystals are extensively used in Opasnet, a web-workspace for making open assessments to support societal decisions

ISSN 2002-4436. "Are the dioxins the most dangerous chemicals in our environment?". opasnet.org. Synopsis on dioxins and PCBs Pohjanvirta R, Tuomisto J (December 1994)

hundred questions about the environment and health. Arsenic to zoonoses - Opasnet Archived 2022-03-27 at the Wayback Machine ATSDR Case Studies in Environmental

Main Page Information about Opasnet Opasnet is a wiki-based website and workspace for helping societal decision making. Opasnet is maintained and develope…

R R is a programming language and software environment for statistical computing and graphics that is widely used for statistical and data analysis. It i…

DDT DDT [1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane], a well known insecticide (insect killer). DDT is not related to PCBs or dioxins, but it is also …

EDx EDx is an effective dose associated with a biological effect in x% of the individuals. Dose may be the external exposure often expressed in mg per da…

ETA The ETA(European Tax Analyzer) is a computer-based model for the computation and comparison of the tax burdens for partnerships and corporations incl…

CII Cyprus International Institute for Environmental and Public Health (CII) is a part of the Cyprus University of Technology, Department of Nursery. The…

DNA DNA (deoxyribonucleic acid): the basic chemical structure of the genes. It is formed of four bases, adenine (A), guanine (G), cytosine (C), and thymi…

TEq, TCDD equivalent quantity, toxicity equivalent (see also TEF). Different congeners of dibenzo-p-dioxins and dibenzofurans have many of the same biolog…

↑Eva Samakovlis, Anni Huhtala, Tom Bellander and Magnus Svartengren. Air Quality and Morbidity: Concentration-response Relationships for Sweden. Working …

HEDS This page provides a description and a link to a "HEDS" database that provides information needed when modeling exposure levels or performing exposu…

Contents Short Description Consolidated Human Activity Database (CHAD) contains data obtained from pre-existing human activity studies that were collecte…

Contents Short description IRIS is a database of human health effects that may result from exposure to various substances found in the environment. The h…

EFSA The European Food Safety Authority (EFSA)[1] is the keystone of European Union (EU) risk assessment regarding food and feed safety. In close collabo…

IPTS The Institute for Prospective Technological Studies (IPTS) is one of the seven scientific institutes of the European Commission's Joint Research Cen…

Abstract Title of the project: Environmental health risk analysis: scientific uncertainties in decision-making (SCUD) Number of person-years: 5 (1.8.2005…

PUrE Pollutants in the Urban Environment (PUrE) is a four-year research consortium project (2005 to 2009) funded by the Engineering and Physical Sciences…

CNSP The CNSP(Costs of Non-Social Policy) spreadsheet model can be seen as an aid to qualitative decision-making. It is an empirical approach to appraisa…

ARNT ARNT: (AH Receptor Nuclear Translocator) a protein in cell nucleus which acts as a partner of AH receptor and some other transcription factors. The …

PCBs Chemical structures PCBs consist of 12 carbon atoms, forming two aromatic phenyl rings attached to one another through a carbon-carbon bridge, and 1…

E3ME The E3ME(Energy-Environment-Economy Model for Europe) model is a multi-country econometric macro-sectoral simulation model for EU-25 countries plus …

EDGE The EDGE model is a dynamic, multi-sector, multi-region general equilibrium model. It divides the world into eight regions. Among others, the dynami…

E3MG The E3MG model is a multi-country econometric macro-sectoral simulation model for 20 world regions. The model combines the features of an annual med…

YMAL is the Assessment and Modelling Unit in the Department of Environmental Health in the National Institute for Health and Welfare (THL). This page con…

Partnerships Funding Contact person(s) Background Recent studies suggest that microbial exposure associated with farming environment may decrease the ris…

PCDF PCDF, polychlorinated dibenzofuran. See that and PCDF - specific items; since the properties are usually very close, a treatise is usually given und…

Onor Onor is a respect currency originally designed to distribute respect for actions reducing greenhouse gas emissions. Nowadays it is more about the re…

Urbis Urbis is a GIS instrument that TNO has developed. It enables the detailed mapping of noise and air pollution (inc. odour) in (parts of) municipalit…

Tapas Tapas (Transportation, air pollution, and physical activity: climate change and urban policies) is a research project coordinated by Creal (Barcelo…

Contents What is Radon Radon is a colourless, odourless, radioactive gas. It comes from the radioactive decay of radium, which in turn comes from the rad…

SIPs and SLURPs Stochastic information packet (SIP) is a format for describing random samples from probability distributions. A SIP is essentially a Mont…

Open policy practice In Opasnet many pages being worked on and are in different classes of progression. Thus the information on those pages should be reg…

Value of information (VOI) in decision analysis is the amount a decision maker would be willing to pay for information prior to making a decision.[1]. Va…

Inputs If you are able to describe your data in the format similar to the tables below, you can use ready-made tools in Opasnet and things are quite stra…

Toxic equivalency factor <section begin=glossary /> TEF (TCDD equivalency factor, toxic equivalency factor): a relative toxicity factor of a PCDD/F or PC…

Acute toxicity toxicity occurring after a single dose within a few weeks. It is generally low, but it depends on the mixture of congeners, because dioxin…

Index conversion function (ICF) is a method describing how one index can be converted to another in a particular context. To this aim, a weight variable …

Exposure-response function (ERF) (or exposure-response relationship) is the relationship between the exposure of a given organism, system, or (sub)popula…

Plant-based food supplements Plant-based food supplements are products that are manufactured from plants and marketed to consumers as food supplements, i…

National Institute for Health and Welfare National Institute for Health and Welfare (Terveyden ja hyvinvoinnin laitos, THL) is a governmental research an…